Games like The Grade 5B Case Files
Games like The Grade 5B Case Files include Magical Girl Witch Trials, Danganronpa V3: Killing Harmony, Tales of the Black Forest, Phoenix Wright: Ace Attorney Trilogy, and Sanfu. We matched them by the tags players give The Grade 5B Case Files on Steam (Adventure, Detective, Female Protagonist, RPG, and Mystery): closest matches first, and among equally close ones the better-known games.

Magical Girl Witch Trials
Shared: Female Protagonist · Detective · Visual Novel

Danganronpa V3: Killing Harmony
Shared: Detective · Female Protagonist · Visual Novel

Tales of the Black Forest
Shared: RPG · Adventure · Female Protagonist

Phoenix Wright: Ace Attorney Trilogy
Shared: Detective · Visual Novel · Mystery

Sanfu
Shared: RPG · Adventure · Mystery

Murders on the Yangtze River
Shared: Detective · Adventure · Mystery

No Case Should Remain Unsolved
Shared: Adventure · Visual Novel · Female Protagonist

月华辉映之刻
Shared: Female Protagonist · Adventure · RPG

Danganronpa 2: Goodbye Despair
Shared: Detective · Mystery · Visual Novel

Danganronpa: Trigger Happy Havoc
Shared: Detective · Visual Novel · Mystery

Threefold Recital
Shared: Detective · Mystery · Visual Novel

Raging Loop
Shared: Adventure · Mystery · Visual Novel

Refind Self: The Personality Test Game
Shared: Female Protagonist · Adventure · Visual Novel

Tails Noir
Shared: Detective · Adventure · Visual Novel

To the Moon
Shared: Adventure · Pixel Graphics · RPG

WILL: A Wonderful World / WILL:美好世界
Shared: Adventure · RPG · Female Protagonist

Mirror 2: Project X
Shared: Female Protagonist · Visual Novel · RPG

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Adventure · Interactive Fiction

Finding Paradise
Shared: Adventure · RPG · Pixel Graphics

Back to the Dawn
Shared: RPG · Detective · Adventure

Kathy Rain
Shared: Adventure · Female Protagonist · Detective

AI: The Somnium Files
Shared: Detective · Adventure · Visual Novel

Trials of Innocence
Shared: Detective · Visual Novel · Adventure

Roadwarden
Shared: Adventure · RPG · Pixel Graphics